Linux - SUSE Linux Enterprise Server 8 SP2A

The Linux scheduler is very sensitive to excessive context switching, so fixes have been integrated into the SLES8 kernel distribution to introduce delay when a thread yields processing. This fix is automatically enabled in SLES8 SP3 but must be enable explicitly in SLES8 SP2A.

 

sched_yield_scale tuning

Enable this fix by running the sysctl -w sched_yield_scale=1 command. If you are using a service pack below SP2A, upgrade to SP2A.

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